64 research outputs found

    Glutathione-Induced Release of Zeatin From Functionalized Gold Nanovectors

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    The paper shows our preliminary results on the different spectroscopic behavior of three types of gold nanoparticles (obtained respectively by chemical synthesis, laser ablation in pure water and laser ablation in a citrate solution) modified with trans-zeatin, a plant growth regulator, in presence of glutathione. The reaction of ligand substitution of the adsorbed zeatin with glutathione is studied through surface enhanced Raman spectroscopy and is revealed to occur only when citrate-laser ablated gold nanoparticles are employed, making these particles potentially good candidates as vehicles of zeatin inside plant cells for future agricultural applications

    Glutathione-Induced Release of Zeatin From Functionalized Gold Nanovectors

    Get PDF
    The paper shows our preliminary results on the different spectroscopic behavior of three types of gold nanoparticles (obtained respectively by chemical synthesis, laser ablation in pure water and laser ablation in a citrate solution) modified with trans-zeatin, a plant growth regulator, in presence of glutathione. The reaction of ligand substitution of the adsorbed zeatin with glutathione is studied through surface enhanced Raman spectroscopy and is revealed to occur only when citrate-laser ablated gold nanoparticles are employed, making these particles potentially good candidates as vehicles of zeatin inside plant cells for future agricultural applications

    Le risorse idriche sotterranee strategiche nel distretto vulcanico di Roccamonfina (Campania nord-occidentale)

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    The ground water budget analysis and the comparison between piezometric levels in the last twenty years in the Savone River basin (Roccamonfina Hydrogeological Unit), show that the ground water lowering is greater than what could be expected taking into account the consumptive use of water made in the area. S the intake area of the basin is larger than the constructed with the isopesti trend of the regional aquifer. Therefore the ground water recharge in the plain area is related to the deep water reservoir. It is possible that, in the last ten years, the strategic water reservoir us deduced from hydrostructural scheme are just develope
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